What would make a euro M103 faster than a US? - PeachParts Mercedes-Benz Forum

POS · #1 03-24-2009, 08:29 AM

I know with the V8s, the euros have better exhaust and higher compression, but is the same true to for the M103 straight six?

OliverVB · #2 03-24-2009, 08:36 AM

Earlier Euro models had less pollution plumbing and other restrictions often resulting in more HP. The Euro version of my "77 230 had about 20 more HP - a significant difference in a low powered 4 cyl. engine.

RBYCC · #3 03-24-2009, 09:25 AM

Quote:

Originally Posted by POS

I know with the V8s, the euros have better exhaust and higher compression, but is the same true to for the M103 straight six?

The Euro M103-12V had +11HP and +4 torque over the USA version.
Compression on both is 9.2:1
No cats and more timing are the main difference in power output.

Ed A.